<?php
$id = addslashes ($id)
require("mysql_connect.php");
$c = mysql_query("select counter,url from links where id='$id'");
$get_count = mysql_query("select counter from downloads where id='$id'";
$d = mysql_fetch_object($c);
if(is_object($d)) {
   $d->counter++; 
   mysql_query("update downloads \n
      set counter='$d->counter' \n
      where id='$id'");
   Header("Location: $d->url");
}
else {
   include('403.php');
}
mysql_close();
?>